Another plastic pb question...

[Clint]

Hello all
I'm cleaning out my "best" pb for a stout that's ready...so usual procedure ... oxi and hot water,lid on and give it a good shaking..
The water comes up above the tap and obviously the oxygen created by the oxi...causes pressure which should in theory enable me to "dispense" through the tap,under pressure,even if it's only for a short time.
But....there's obviously a lot of pressure there and lots of "noise" when I crack the tap but it's as if the barrel is sucking IN air rather than pushing out the oxi solution..When the barrel is low with beer I've had this when trying to dispense even though the keg is gassed...
Any ideas?

 

[Drunkula]

Are you waiting a while before opening the tap? I get this when doing plastic bottles - you put hot water in, cap and shake and initially it'll pressurise the bottle as hot water heats the air, but when it cools it'll cause the bottle to collapse.

Maybe the oxi isn't creating enough gas to make up for the contraction caused by the heat loss of the system.

 

[Rodcx500z]

Hi Clint last one i cleaned was a youngs i just put a scoop in and filled it to the brim with with cold water put the cap on loosely and left it for 24 hours it was like brand new